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20122026
most citedLHC-friendly minimal freeze-in models

105 citations · 1.3k across the 56 of their papers we have counts for

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hep-ph2026

Pinpointing the Mechanism of Neutrinoless Weak Decays with Positrons

Julia Harz, George A. Parker

Neutrinoless double beta decay is the flagship laboratory probe of a Majorana contribution to the neutrino mass. However, besides the standard mass mechanism other higher- dimensio…

hep-ph2026

Sommerfeld Effect and Bound State Formation for Dark Matter Models with Colored Mediators with SE+BSF4DM

Mathias Becker, Emanuele Copello, Julia Harz +1

In the universal framework of simplified -channel dark matter models, the calculation of the relic abundance can be dominated by mediator annihilation when the dark matter and m…

hep-ph2026

Manual for SE+BSF4DM -- A micrOMEGAs package for Sommerfeld Effect and Bound State Formation in colored Dark Sectors

Mathias Becker, Emanuele Copello, Julia Harz +1

This manual describes the usage and implementation of SE+BSF4DM, an add-on package for micrOMEGAs that includes the Sommerfeld effect and bound state formation in the numerical eva…

hep-ph2025

Impact of dim-6 SMEFT operators on low-scale leptogenesis

Kaori Fuyuto, Julia Harz, Sascha Weber

We investigate the impact of higher-dimensional operators on low-scale leptogenesis (LG) via oscillations of right-handed neutrinos within the neutrino-extended Standard Model Effe…

hep-ph2025★ 6 cited

t-channel dark matter at the LHC -- a whitepaper

Chiara Arina, Benjamin Fuks, Luca Panizzi +67

This report, summarising work achieved in the context of the LHC Dark Matter Working Group, investigates the phenomenology of -channel dark matter models, spanning minimal setup…

hep-ph2025

ALP Production from Abelian Gauge Bosons: Beyond Hard Thermal Loops

Mathias Becker, Julia Harz, Enrico Morgante +2

Previous computations of feebly interacting particle production have encountered issues with unphysical (negative) interaction rates at soft momenta. We address this problem by stu…